Question

cosec (90-theta) - x sin (90-theta) tan(180 +theta) = Sin (90+a).​

Answer 1

Step-by-step explanation:

cos (90° + θ) = – sin θ. sec (- θ) = sec θ. tan (180° – θ) = – tan θ. sec (360° – θ) = sec θ. sin (180° + θ) = – sin θ. cot (90° + θ) ...